Maak de erbijsom tot 20
Erbijsommen
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1.
1 + 7 =
|
2.
11 + 3 =
|
3.
13 + 3 =
|
|
4.
5 + 10 =
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5.
5 + 12 =
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6.
1 + 19 =
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7.
1 + 18 =
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8.
19 + 1 =
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9.
10 + 6 =
|
|
10.
6 + 5 =
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11.
8 + 2 =
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12.
4 + 16 =
|
|
13.
20 + 0 =
|
14.
17 + 1 =
|
15.
20 + 0 =
|
|
16.
16 + 3 =
|
17.
8 + 12 =
|
18.
18 + 2 =
|
|
19.
8 + 5 =
|
20.
15 + 3 =
|
21.
14 + 4 =
|
|
22.
16 + 4 =
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23.
4 + 6 =
|
24.
15 + 4 =
|
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25.
12 + 0 =
|
26.
11 + 6 =
|
27.
12 + 1 =
|
|
28.
12 + 7 =
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29.
3 + 17 =
|
30.
5 + 3 =
|
|
31.
7 + 7 =
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32.
14 + 4 =
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33.
20 + 0 =
|